Amorphous carbon Acetylene 2 Acetylene decomposition 2 Amorphous carbon layer 2 Amorphous films 2 Amorphous ribbons 2 Bonding 2 Carbon films 2 Carbon nanotubes 2 Carbon steel 2 Carbon steel tubes 2 Catalysts 2 Chemical vapor deposition 2 Compact coatings 2 Decomposition 2 Depth-resolved 2 Etching 2 Etching process 2 Etching rate 2 Finite element method 2 Flow rate 2 Gas compositions 2 Interlayers 2 Iron catalysts 2 Liquid phase bonding 2 Mass spectrometry 2 Multi-walled carbon nanotubes (MWCNTs) 2 Nanoparticles 2 Raman measurements 2 Raman spectroscopy 2